Oled display device

Abstract

An OLED display device is disclosed. The device includes: a base substrate; a planarization layer disposed on the substrate, an outer barrier wall, and an inner barrier wall; multiple light emitting devices and a pixel defining layer disposed on the planarization layer; a first inorganic layer covering the pixel defining layer and each light emitting device, wherein the first inorganic layer is extended to the inner barrier wall and covering the inner barrier wall; an organic layer disposed on the first inorganic layer, and an extending length of the organic layer is less than an extending length of the first inorganic layer; and a second inorganic layer disposed on the organic layer, the first inorganic layer, the outer barrier wall and the base substrate; wherein, the second inorganic layer is in a discontinuous connection state using the outer barrier wall as a breakpoint.

What is claimed is: 
     
         1 . An OLED display device, comprising:
 a base substrate;   a planarization layer disposed on the substrate, an outer barrier wall, and an inner barrier wall located between the planarization layer and the outer side wall; wherein the outer barrier wall is provided with a first side surface facing toward the planarization layer and a second side surface away from the planarization layer, and at least one of the first side surface and the second side surface forms an acute angle relationship with the base substrate;   multiple light emitting devices and a pixel defining layer disposed on the planarization layer, wherein each light emitting device is received in a corresponding groove formed on the pixel defining layer;   a first inorganic layer covering the pixel defining layer and each light emitting device, wherein the first inorganic layer is extended to the inner barrier wall and covering the inner barrier wall;   an organic layer disposed on the first inorganic layer, and the organic layer is extended between the inner barrier wall and the pixel defining layer, and an extending length of the organic layer is less than an extending length of the first inorganic layer; and   a second inorganic layer disposed on the organic layer, the first inorganic layer, the outer barrier wall and the base substrate; wherein, the second inorganic layer is in a discontinuous connection state using the outer barrier wall as a breakpoint because at least one of the first side surface and the second side surface in the outer barrier wall forms an acute angle relationship with the base substrate.   
     
     
         2 . The OLED display device according to  claim 1 , wherein the outer barrier wall is an inverted trapezoidal column body, and each of the first side surface and the second side surface of the outer barrier wall forms an acute angle less than or equal to 45 degrees with the base substrate. 
     
     
         3 . The OLED display device according to  claim 2 , wherein a height of the outside barrier wall  25  is in a range of 0.01 um˜3 um, and a width of the outside barrier wall  25  is in a range of between 5 um˜50 um. 
     
     
         4 . The OLED display device according to  claim 3 , wherein the inner barrier wall and the outer barrier wall have a same structure. 
     
     
         5 . The OLED display device according to  claim 4 , wherein a material of each of the inner barrier wall and the outer barrier wall includes epoxy resin, polyimide and poly(methyl methacrylate). 
     
     
         6 . The OLED display device according to  claim 5 , wherein a thickness of the organic layer is in a range of 4 μm˜10 μm, and a material of the organic layer includes acrylate, hexamethyldisiloxane, polyacrylates, polycarbonate and polystyrene. 
     
     
         7 . The OLED display device according to  claim 6 , wherein a thickness of each of the first inorganic layer and the second inorganic layer is in a range of 0.1 μm˜2 μm, and a material of each of the first inorganic layer and the second inorganic layer include epoxy resin, polyimide, and polymethyl methacrylate. 
     
     
         8 . The OLED display device according to  claim 7 , wherein each light emitting device includes an anode and an organic light emitting layer disposed on the anode. 
     
     
         9 . The OLED display device according to  claim 8 , wherein the organic light emitting layer includes a hole injecting layer, a hole transporting layer, a light emitting layer, an electron transporting layer, an electron injecting layer, a cathode and an optical path adjusting layer on the cathode. 
     
     
         10 . The OLED display device according to  claim 9 , wherein the base substrate is a TFT array substrate. 
     
     
         11 . An OLED display device, comprising:
 a base substrate;   a planarization layer disposed on the substrate, an outer barrier wall, and an inner barrier wall located between the planarization layer and the outer side wall; wherein the outer barrier wall is provided with a first side surface facing toward the planarization layer and a second side surface away from the planarization layer, and at least one of the first side surface and the second side surface forms an acute angle relationship with the base substrate;   multiple light emitting devices and a pixel defining layer disposed on the planarization layer, wherein each light emitting device is received in a corresponding groove formed on the pixel defining layer;   a first inorganic layer covering the pixel defining layer and each light emitting device, wherein the first inorganic layer is extended to the inner barrier wall and covering the inner barrier wall;   an organic layer disposed on the first inorganic layer, and the organic layer is extended between the inner barrier wall and the pixel defining layer, and an extending length of the organic layer is less than an extending length of the first inorganic layer;   a second inorganic layer disposed on the organic layer, the first inorganic layer, the outer barrier wall and the base substrate; wherein, the second inorganic layer is in a discontinuous connection state using the outer barrier wall as a breakpoint because at least one of the first side surface and the second side surface in the outer barrier wall forms an acute angle relationship with the base substrate;   wherein the outer barrier wall is an inverted trapezoidal column body, and each of the first side surface and the second side surface of the outer barrier wall forms an acute angle less than or equal to 45 degrees with the base substrate; and   wherein the inner barrier wall and the outer barrier wall have a same structure.   
     
     
         12 . The OLED display device according to  claim 11 , wherein a material of each of the inner barrier wall and the outer barrier wall includes epoxy resin, polyimide and poly(methyl methacrylate). 
     
     
         13 . The OLED display device according to  claim 12 , wherein a thickness of the organic layer is in a range of 4 μm˜10 μm, and a material of the organic layer includes acrylate, hexamethyldisiloxane, polyacrylates, polycarbonate and polystyrene. 
     
     
         14 . The OLED display device according to  claim 13 , wherein a thickness of each of the first inorganic layer and the second inorganic layer is in a range of 0.1 μm˜2 μm, and a material of each of the first inorganic layer and the second inorganic layer include epoxy resin, polyimide, and polymethyl methacrylate. 
     
     
         15 . The OLED display device according to  claim 14 , wherein each light emitting device includes an anode and an organic light emitting layer disposed on the anode. 
     
     
         16 . The OLED display device according to  claim 15 , wherein the organic light emitting layer includes a hole injecting layer, a hole transporting layer, a light emitting layer, an electron transporting layer, an electron injecting layer, a cathode and an optical path adjusting layer on the cathode. 
     
     
         17 . The OLED display device according to  claim 16 , wherein the base substrate is a TFT array substrate. 
     
     
         18 . An OLED display device, comprising:
 a base substrate;   a planarization layer disposed on the substrate, an outer barrier wall, and an inner barrier wall located between the planarization layer and the outer side wall; wherein the outer barrier wall is provided with a first side surface facing toward the planarization layer and a second side surface away from the planarization layer, and at least one of the first side surface and the second side surface forms an acute angle relationship with the base substrate;   multiple light emitting devices and a pixel defining layer disposed on the planarization layer, wherein each light emitting device is received in a corresponding groove formed on the pixel defining layer;   a first inorganic layer covering the pixel defining layer and each light emitting device, wherein the first inorganic layer is extended to the inner barrier wall and covering the inner barrier wall;   an organic layer disposed on the first inorganic layer, and the organic layer is extended between the inner barrier wall and the pixel defining layer, and an extending length of the organic layer is less than an extending length of the first inorganic layer;   a second inorganic layer disposed on the organic layer, the first inorganic layer, the outer barrier wall and the base substrate; wherein, the second inorganic layer is in a discontinuous connection state using the outer barrier wall as a breakpoint because at least one of the first side surface and the second side surface in the outer barrier wall forms an acute angle relationship with the base substrate;   wherein a height of the outside barrier wall  25  is in a range of 0.01 um˜3 um, and a width of the outside barrier wall  25  is in a range of between 5 um˜50 um;   wherein an inner barrier wall and an outer barrier wall have a same structure; and   wherein a material of each of the inner barrier wall and the outer barrier wall includes epoxy resin, polyimide and poly(methyl methacrylate).   
     
     
         19 . The OLED display device according to  claim 18 , wherein a thickness of the organic layer is in a range of 4 μm˜10 μm, and a material of the organic layer includes acrylate, hexamethyldisiloxane, polyacrylates, polycarbonate and polystyrene. 
     
     
         20 . The OLED display device according to  claim 19 , wherein a thickness of each of the first inorganic layer and the second inorganic layer is in a range of 0.1 μm˜2 μm, and a material of each of the first inorganic layer and the second inorganic layer include epoxy resin, polyimide, and polymethyl methacrylate.